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2 years ago

Why numbers are written as powers?

Mathematics

1 answer:

pishuonlain [190]2 years ago

3 0

Answer:

Answer below

Step-by-step explanation:

Large numbers like 100 billion are cumbersome to write out in ordinary form (100,000,000,000) and so scientists use a shorthand notation called powers of ten. ... The exponent tells you how many times ten is to be multiplied by iteslf to equal the number you wish to write. For example, 100 can be written as 10x10 = 102.

Hope this helps!

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If $300 is invested at a rate of 6% per year and is compounded quarterly, how much will the investment be worth in 12 years?

MAXImum [283]

Answer:

$613.04

Step-by-step explanation:

Compound Interest Formula:

$A = P(1+\frac{r}{n})^{nt}$

n = number of compounds

t = time

r = interest rate

P = principle amount (original amount)

A = final amount

Since it's compounded quarterly, that means there will be 4 compounds per year, so n=4. The interest rate has to be converted to the decimal value, and this is done by simply dividing it by 100 to get r=0.06.

Plug Values into equation:

$A = 300(1+\frac{0.06}{4})^{12*4}$

Simplify inside parenthesis

$A = 300(1.015)^{48}$

Calculate exponent

$A \approx 300(2.043478)$

Multiply values

$A \approx 613.04348$

Round

$A = 613.04$

7 0

1 year ago

What is 5(6\36+12-3)? (No answer choice)

Ierofanga [76]

The first thing you would do is simplify the inside of the parenthesis to 55/6 using PEMDAS. Next all you do is multiply that by 5 to get 275/6 or 45.833 (repeating) in decimal form.

6 0

2 years ago

What value for c will make the expression a perfect square trinomial? X^2-7x+c

gavmur [86]

Answer: c= 49/4

Step-by-step explanation:

6 0

2 years ago

17+m=8 one step equations

lilavasa [31]

Answer:

m= -9

Step-by-step explanation:

17 + m = 8

subtract 17 from both sides

(17-17) + m = 8-17 = -9

m= -9 check answer by replacing m with -9

17 + (-9)= 8

6 0

2 years ago

F(x)= -2x^2 - 5 and f(2)= -13 can someone solve this in steps please?

Rashid [163]

This is one way you could write out the steps

f(x) = -2x^2 - 5

f(2) = -2(2)^2 - 5

f(2) = -2(4) - 5

f(2) = -8 - 5

f(2) = -13

4 0

2 years ago

Read 2 more answers